New Dell Laptop-Hurting Battery?

GrimReepr

Senior member
Jun 12, 2000
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This is most likely a general laptop question, but the laptop I have is a new dell 5100 series with the p4 2.66. I often turn off the laptop and leave the ac adaptor from the wall plugged in to it. I can't hurt the battery can I? Like over-charging it or something?

I am sure I'm just over-reacting, but I am curious as to other people's feedback.


Thanks as always!
-Ryan
 

Rainsford

Lifer
Apr 25, 2001
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Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
 

InlineFive

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Sep 20, 2003
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Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.

You are correct, I have a new Li-Ion battery from Dell for my Latitude C600 and it works very well. In fact it's better to leave them in when on AC because they stay charged instead of slowly discharging on their own.

-Por
 

apoppin

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Mar 9, 2000
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alienbabeltech.com
Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
If you leave the batterys in the notebook while you are on AC, you will be lucky to get a year of full service out of them . . . 3 or 4 years simply by removing them.

It's your call. ;)

EDIT: Your "new" battery will be noticeably less "new" in a year . . . battery technology is very IMperfect (still). Buy a UPS if you need one. :p

 

GrimReepr

Senior member
Jun 12, 2000
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hmmmm..... thanks for the suggestions, but what a pain to remove the battery everytime. I'll just unplug the AC when it's not on and suffer with it plugged in. That laptop is too expensive to be flipping around and removing the battery all the time.


-ryan
 

dkozloski

Diamond Member
Oct 9, 1999
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I've been using the same two batteries in my old Sony laptop for seven years now. The battery monitoring program says that one is still as good as new with 100% capacity and the other has degrade to 98%. I have done everything from constant attention to plugging in all the time to total neglect and it doesn't seem to make any difference what I do. I think that there are so many variables involved that it doesn't make a hill of beans how you treat your battery.
 

Rainsford

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Apr 25, 2001
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Originally posted by: apoppin
Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
If you leave the batterys in the notebook while you are on AC, you will be lucky to get a year of full service out of them . . . 3 or 4 years simply by removing them.

It's your call. ;)

EDIT: Your "new" battery will be noticeably less "new" in a year . . . battery technology is very IMperfect (still). Buy a UPS if you need one. :p

I thought maybe I was wrong, but after a little research, here's what I came up with. It seems that lithium ion batteries have shortened lives because they are overcharged. Here is a quote from Dell on their laptops.

NOTE: You can leave the battery in the computer as long as you like. The battery's integrated circuitry prevents the battery from overcharging.

To me, this note does not suggest that you should remove the battery when you are done charging it. That seems counter-intuitive and is certainly not what Dell's manual says. But hey, I want a long battery life as much as the next guy, so find me something that says otherwise and I'm all ears :)
 

WackyDan

Diamond Member
Jan 26, 2004
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Originally posted by: Rainsford
Originally posted by: apoppin
Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
If you leave the batterys in the notebook while you are on AC, you will be lucky to get a year of full service out of them . . . 3 or 4 years simply by removing them.

It's your call. ;)

EDIT: Your "new" battery will be noticeably less "new" in a year . . . battery technology is very IMperfect (still). Buy a UPS if you need one. :p

I thought maybe I was wrong, but after a little research, here's what I came up with. It seems that lithium ion batteries have shortened lives because they are overcharged. Here is a quote from Dell on their laptops.

NOTE: You can leave the battery in the computer as long as you like. The battery's integrated circuitry prevents the battery from overcharging.

To me, this note does not suggest that you should remove the battery when you are done charging it. That seems counter-intuitive and is certainly not what Dell's manual says. But hey, I want a long battery life as much as the next guy, so find me something that says otherwise and I'm all ears :)



Hundreds of Laptaps and batteries don't lie..... If you had a NMH battery then yes, by all means remove it from the laptop. If you have L-ion, then leave the ah heck plugged in all the time. Ever since we started getting L-ion batteries a few years ago, life has been so much easier.
 

apoppin

Lifer
Mar 9, 2000
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alienbabeltech.com
Originally posted by: Rainsford
Originally posted by: apoppin
Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
If you leave the batterys in the notebook while you are on AC, you will be lucky to get a year of full service out of them . . . 3 or 4 years simply by removing them.

It's your call. ;)

EDIT: Your "new" battery will be noticeably less "new" in a year . . . battery technology is very IMperfect (still). Buy a UPS if you need one. :p

I thought maybe I was wrong, but after a little research, here's what I came up with. It seems that lithium ion batteries have shortened lives because they are overcharged. Here is a quote from Dell on their laptops.

NOTE: You can leave the battery in the computer as long as you like. The battery's integrated circuitry prevents the battery from overcharging.

To me, this note does not suggest that you should remove the battery when you are done charging it. That seems counter-intuitive and is certainly not what Dell's manual says. But hey, I want a long battery life as much as the next guy, so find me something that says otherwise and I'm all ears :)
Feel free to do what you like. . . . i know the results of MY Dell Inspiron battery's life from being IN all the time and (also) OUT when it's not on AC. ;)

Dell is in the business of SELLING batterys . . . all they care is they last through the warranty period. If you leave your Dell Llion battery continuously IN your notebook you WILL have SHORTened batery life. :p
 

txxxx

Golden Member
Feb 13, 2003
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Li-Ion batteries have a small embedded chip that regulates the battery, noticed when opening an old Sony Li-Ion camera battery. Me and my dad was shocked to see it at first, but did a google to find out its needed. If a Li-Ion battery is overcharged, it CAN explode, hence the regulation chip.
 

dkozloski

Diamond Member
Oct 9, 1999
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Txxxx, In the case of Sony, the chip also keeps a history of the battery as well as the serial number.
 

Abhi

Diamond Member
Sep 13, 2003
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Dell is in the business of SELLING batterys . . . all they care is they last through the warranty period. If you leave your Dell Llion battery continuously IN your notebook you WILL have SHORTened batery life. :p

Are batteries covered by dell warranties ??
 

WackyDan

Diamond Member
Jan 26, 2004
4,794
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Originally posted by: Abhi
Dell is in the business of SELLING batterys . . . all they care is they last through the warranty period. If you leave your Dell Llion battery continuously IN your notebook you WILL have SHORTened batery life. :p

Are batteries covered by dell warranties ??

Usually only 1 year on batteries. That's Dell, IBM, HP.... If your system has a three year warranty then your battery STILL has only a 1 year.
 

LikeLinus

Lifer
Jul 25, 2001
11,518
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Originally posted by: apoppin
Originally posted by: Rainsford
Originally posted by: apoppin
Originally posted by: Rainsford
Nope, not with newer batteries. As far as I've heard, with newer batteries you would be hard pressed to hurt them. I could be wrong though.
If you leave the batterys in the notebook while you are on AC, you will be lucky to get a year of full service out of them . . . 3 or 4 years simply by removing them.

It's your call. ;)

EDIT: Your "new" battery will be noticeably less "new" in a year . . . battery technology is very IMperfect (still). Buy a UPS if you need one. :p

I thought maybe I was wrong, but after a little research, here's what I came up with. It seems that lithium ion batteries have shortened lives because they are overcharged. Here is a quote from Dell on their laptops.

NOTE: You can leave the battery in the computer as long as you like. The battery's integrated circuitry prevents the battery from overcharging.

To me, this note does not suggest that you should remove the battery when you are done charging it. That seems counter-intuitive and is certainly not what Dell's manual says. But hey, I want a long battery life as much as the next guy, so find me something that says otherwise and I'm all ears :)
Feel free to do what you like. . . . i know the results of MY Dell Inspiron battery's life from being IN all the time and (also) OUT when it's not on AC. ;)

Dell is in the business of SELLING batterys . . . all they care is they last through the warranty period. If you leave your Dell Llion battery continuously IN your notebook you WILL have SHORTened batery life. :p

Realize the amount of variables in your "test" and you'll see the problem. The Dell batteries house a chip that indeed wont allow them to be overcharged. The battery I had in my Inspiron 7500 lasted 3 years with no problems. My current 8100 is going on 2 1/2 years and still using the same battery (and keeps a 3 1/2 hour charge).

In your respects, you could have a faulty battery or any number of things. That doesn't mean that keeping a laptop plugged up with the battery installed means it'll shorten it's life or efficiency.
 

AIWGuru

Banned
Nov 19, 2003
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dan from dansdata who is an expert fielded this very same question.
He said to leave it in, it doesn't hurt it.